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ObjectiveTo analyze the epidemiological characteristics of tetrodotoxin poisoning events in China from 2011 to 2020 and provide a scientific basis for precise measures to prevent and control tetrodotoxin poisoning.MethodsDescriptive epidemiological methods were used to analyze the epidemiological characteristics of tetrodotoxin poisoning incidents reported through the National Foodborne Disease Outbreak Monitoring System from 2011 to 2020.ResultsFrom 2011 to 2020， 92 cases of tetrodotoxin poisoning reports were received through the National Foodborne Disease Outbreak Monitoring System； 339 people were poisoned and 15 were dead， with a case fatality rate of 4.4%. Tetrodotoxin poisoning was mainly concentrated in the coastal areas of China. The food carriers of tetrodotoxin included pufferfish （71.7%， 66/92）， dried pufferfish （13.0%， 12/92）， Nassariidae （7.6%， 7/92）， horseshoe crabs （5.4%， 5/92）， and Acentrogobius nebulosus （2.2%， 2/92）. Each year， a high incidence of poisoning occurs from March to April.ConclusionTo effectively prevent and control tetrodotoxin poisoning， it is necessary to establish a method for detecting tetrodotoxins in biological samples， improve the ability to identify the pathogenic factors of tetrodotoxin poisoning， strengthen the supervision and popularization of science in the circulation process， and change the dietary habits of people who eat wild pufferfish.

Resource utilization of waste iron sludge from wastewater treatment plants can be achieved by leveraging iron sludge-based catalysts to construct Fenton-like systems. Notably，the pyrolysis temperature modulates the composition of metal and non-metal sites on the catalyst surface，thus affecting the activation of hydrogen peroxide（H2O2）. The catalysts prepared at different pyrolysis temperatures（400-700 ℃） were analyzed in terms of morphology，composition，structure and activity. It was found that the degradation efficiency of methylene blue（MB） could reach 92.0% within 100 min with the activation of H2O2 by the catalyst obtained at 700 °C. Additionally，the specific surface area and C content of the catalyst increased as the pyrolysis temperature increased from 400 ℃ to 700 ℃. The mechanistic investigation revealed that Fe0，C̿ C/C—C and C̿ O active sites on the catalyst surface were critical for the activation of H2O2，which facilitated MB degradation. Moreover，hydroxyl radicals（·OH） and singlet oxygen（1O2） were the dominant active species in the iron sludge-derived catalyst/H2O2 system，with superoxide radicals（O2·-） playing a minor role.

Objective To investigate the effect of high-quality nursing services under the humanistic care nursing model for hospitalized elderly patients with chronic diseases. Methods Totally 70 elderly patients with chronic diseases admitted to the hospital from January 2022 to January 2023 were selected as the research objects. They were randomly divided into the study group and the control group, with 35 patients in each group. Patients in the control group received routing nursing interventions, and those in the study group were given high-quality nursing services under the humanistic care nursing model. The nursing quality evaluation criteria and self-made questionnaire were used to measure the quality of nursing service and patients’ satisfaction. Results The score of nursing quality evaluation criteria in the study group was higher than that in the control group, with a significant difference(P

Objective To evaluate the psychological intervention combined with Traditional Chinese Medicine Ta stain therapy in nursing of patients with diabetic foot ulcer. Methods Totally 64 patients with diabetic foot ulcer were randomly divided into the control group and the observation group, with 32 cases in each group. All patients received local dressing change in addition to the comprehensive treatment such as blood glucose control and infection prevention. Patients in the observation group were given psychological intervention combined with wet compress of Traditional Chinese Medicine. The condition of swelling relief and wound repair were evaluated after intervention, and the degree of pain was measured by using Visual Analogue Scale (VAS). Results The total effective rates of swelling relief and wound repair in the observation group were higher than those in the control group(P＜0. 05). The VAS score was decreased in both two groups after intervention, and VAS score in the observation group was lower than that in the control group(P＜0. 01). Conclusion The psychological intervention combined with wet compress of Traditional Chinese Medicine is effective to improve the swelling relief and wound repair, and reduce the pain of patients with diabetic foot ulcer. (目的 探讨心理干预联合中药塌渍技术在糖尿病足溃疡患者护理中的应用效果。方法 采用随机数字表法将64例糖尿病足溃疡患者分为对照组和观察组, 各32例。两组患者在积极控制血糖和抗感染的基础上, 给予局部换药; 观察组增加中药塌渍治疗, 并强化患者心理干预。评估患者红肿伤口消肿情况和破溃伤口修复情况, 采用视觉模拟评分(VAS)评估患者足部疼痛感, 评价干预效果。结果 红肿伤口消肿和破溃伤口修复评价结果显示, 观察组干预效果均优于对照组, 差异有统计学意义(P＜0. 05)。干预后, 两组VAS量表评分均较干预前下降, 且观察组VAS量表评分低于对照组, 差异有统计学意义(P＜0. 01)。结论 在常规护理的基础上, 心理干预联合中药塌渍技术能有效促进糖尿病足溃疡患者红肿伤口消肿和破溃伤口的修复, 缓解足部疼痛感。)

To evaluate the integrated traditional Chinese and western medicine nursing interventions in the treatment of chronic heart failure in the elderly. The hospital had established an integrated traditional Chinese and western medicine nursing model based onmulti-disciplinary team. Based on the treatment of acute exacerbation of chronic heart failure, comprehensive nursing interventions of integrated traditional Chinese and Western medicine were carried out including Traditional Chinese Medicine treatment by syndrome differentiation, Traditional Chinese Medicine characteristic nursing, nursing of insomnia, dietary nursing, Traditional Chinese Medicine enema, volume monitoring, skin care, extended care. (探讨适合我国国情的老年慢性心力衰竭的中西医结合治疗模式和特色护理模式。医院在老年慢性心力衰竭治疗中形成了以多学科合作为基础的中西医结合特色护理模式, 包括慢性心衰急性期治疗与护理、中医辨证施治、中医护理、失眠护理、叙事护理、饮食护理、中药灌肠、出入量监测、皮肤护理、延续性护理等。)

Objective To investigate the effect of humanistic nursing interventions on anxiety and depression of patients with diabetic foot. Methods A total of 100 patients with diabetic foot were randomly divided into the control group and observation group, with 50 cases in each group. All patients received comprehensive treatment of diabetes and routine care, and those in the observation group were given humanistic nursing interventions. The Self-rating Anxiety Scale and Self-rating Depression Scale were used to measure the negative emotions of patients. Results The SAS and SDS scores were significantly decreased after intervention, and SAS and SDS scores in the observation group were lower than those in the control group (P＜0. 01). Conclusion The humanistic nursing intervention is effective to relieve the anxiety and depression of patients with diabetic foot. It may help to enhance patient’s positive coping style and quality of life. (目的 运用人文关怀护理干预缓解糖尿病足患者焦虑抑郁情绪。方法 选取于2022年1月—2023年4月医院收治的糖尿病足患者100例为研究对象, 随机分组为对照组和观察组, 各50例。对照组接受常规治疗和护理, 观察组在对照组基础上增加人文关怀护理。采用焦虑自评量表(SAS)和抑郁自评量表(SDS)评估患者焦虑抑郁情绪。结果 干预后, 两组SAS和SDS量表评分均较干预前下降, 且观察组SAS和SDS量表评分低于对照组, 差异有统计学意义(P＜0. 01)。结论 人文关怀护理能有效改善糖尿病足患者焦虑抑郁情绪, 增强积极应对方式, 从而有利于改善生活质量。)

This article summarized the postoperative nursing of integrated traditional Chinese and Western medicine for an elderly patient undergoing surgery for thyroid cancer. Comprehensive nursing interventions such as basic nursing, acupuncture massage, dietary nursing, exercise guidance and psychological care were carried out. A comprehensive nursing plan of integrated traditional Chinese and Western medicine had been made to relieve the negative emotion and pain of the patient, and improve the sleep quality and quality of life during rehabilitation. (本文总结1例老年甲状腺癌患者术后中西医结合护理经验。根据患者术后症状, 完善基础护理, 中西医联合用药, 并采用针灸按摩、饮食调护、运动指导、心理干预等护理方法, 内外结合, 提升患者治疗信心, 缓解其负性情绪, 减轻疼痛, 改善睡眠质量, 提高患者的生活质量。)

In order to explore the corrosion resistance of different structures in the weld zone of R60702 laser welded joints under different welding processes (Process 1: laser power 1 600 W，welding speed 1 600 mm/min，linear energy 60 J/mm，gas flow 20 L/min，defocus amount 0 mm；Process 2: laser power 1 800 W，welding speed 1 200 mm/min，linear energy 90 J/mm，gas flow 20 L/min，defocus amount 0 mm)，metallurgical microscope (OM)，X-ray diffractometer (XRD)，electrochemical tester，scanning electron microscope (SEM)，threedimensional profilometer and energy spectroscopy (EDS) were used to analyze the metallographic structure，phase composition，corrosion resistance and its mechanism，corrosion morphology and elemental composition of corrosion products.Results showed that the weld zone exhibited different microstructures under two welding processes.Under the condition of process 1，the weld zone was a mixture of basket-like structure and a small amount (26.7%) of parallel lath-like Widmanstatten structure.Under the condition of process 2，the weld area displayed a typical Widmanstatten structure.After being immersed and corroded in 20%sulfuric acid at 100 ℃for 72 h，the mixed structure welds showed galvanic corrosion，and the parallel lath Widmanstatten structure welds showed uniform corrosion.In addition，the parallel lath Widmanstatten structure welds had better corrosion resistance.The inhomogeneity of the microstructure of the mixed-structure weld created a potential difference，which caused the oxide film to rupture due to galvanic corrosion，and so the mixed structure held the poorer corrosion resistance.On the contrary，the parallel lath Widmanstatten structure weld had good electrochemical uniformity and no significant difference in self-corrosion potential，which was beneficial to inhibit galvanic corrosion.

ObjectiveTo obtain the occurrence time and regional distribution characteristics， place of occurrence， high-risk food and risk factors， the epidemiological characteristics of foodborne disease outbreaks caused by Vibrio parahaemolyticus from 2010 to 2020 in China’s Mainland was analyzed.MethodsThe data of foodborne disease outbreaks caused by Vibrio parahaemolyticus were collected from China disease outbreak surveillance system from 2010 to 2020 were analyzed statistically.ResultsFrom 2010 to 2020， a total of 1 772 outbreaks of foodborne diseases caused by Vibrio parahaemolyticus were reported， with a total of 27 212 cases， 5 944 hospitalized cases and 2 deaths. The peak time was from July to September. The incidence in developed areas （28.8 cases/million people） was higher than that in underdeveloped areas （8.2 cases/million people）， and the incidence in coastal areas （31.7 cases/million people） was higher than that in inland areas （9.2 cases/million people）. The main causes were aquatic food （61.2%） and meat （25.3%）. Hotels and restaurants accounted for 49.6% of the total. The main contamination links were incomplete cooking of aquatic food and raw and cooked cross-contamination of ready-to-eat meat and vegetable food.ConclusionIn order to reduce the risk of foodborne diseases caused by Vibrio parahaemolyticus， it is important to strengthen the supervision of processing and storage of aquatic food and meat in catering service places.